On one of the planets was a settlement of earthlings. They lived there and mined minerals. But one morning they were attacked by aliens. The civilian population was in danger. Earth Government sent them to the aid of the morning. Your task is to pass on the locations and destroy monsters. The problem is that the weapon does not work on the planet, why rely only on the fortress of his hands. After the destruction of the monster out of him falling objects, collect them - they give points and useful bonuses